Hundreds of salmon, trout and other fish sought shelter from summer heat in human-made shelters, suggesting a way to help fish adapt to river warming.
This past summer, hundreds of fish in the Wrights River in Nova Scotia, Canada, found reprieve from the heat in, civil engineer Kathryn Smith reported October 17 at the Geological Society of America meeting. The work, though only proof of concept, could aid efforts to conserve cold-water species amid the widespreadWhen water temperatures get too hot, fish can become stressed or even die.
So she and her colleagues pumped groundwater that was about 9° Celsius from a nearby well into the river, manifesting an artificial plume of water that could be as much as 20 degrees Celsius cooler than the surrounding water.
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